Major solar flare measuring X1.6 erupts, sends Earth directe
Sept 11, 2014 10:21:44 GMT 10
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Post by bigriver on Sept 11, 2014 10:21:44 GMT 10
Major solar flare measuring X1.6 erupts, sends Earth directed CME
origin-www.swpc.noaa.gov/news/activity-region-2158
origin-www.swpc.noaa.gov/news/recent-r3-noaa-scale-strong-solar-flare
A major solar flare measuring X1.6 at its peak time erupted on September 10, 2014. The source was geoeffective Active Region 2158 located almost at the center of the disk. The event started at 17:21, peaked at 17:45 and ended at 18:20 UTC.
source - the Watchers
Coronal Mass Ejection (CME) was generated and a part of it is headed toward our planet.
A Type II (velocity 3750 km/s) and Type IV radio emissions were associated with the event. Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.
Additionally, a 10cm Radio Burst (tenflare) lasting 57 minutes with peak flux of 1300 sfu was associated with the event. A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.
Region 2158, the source of today's X-class solar flare, has 'beta-gamma-delta' magnetic configuration and is capable of producing more strong to major eruptions on the Sun. It will remain in geoeffective position for the next couple of days. Any CME from that region will most likely be Earth directed.
NOAA SWPC forecasters estimate 75% for M-class and 30% chance for X-class solar flares in the next two days.
***
Space Weather Message Code: SUMX01
Serial Number: 103
Issue Time: 2014 Sep 10 1827 UTC
SUMMARY: X-ray Event exceeded X1
Begin Time: 2014 Sep 10 1721 UTC
Maximum Time: 2014 Sep 10 1745 UTC
End Time: 2014 Sep 10 1820 UTC
X-ray Class: X1.6
Optical Class: 2b
Location: N15E09
NOAA Scale: R3 - Strong
Potential Impacts: Area of impact consists of large portions of the sunlit side of Earth, strongest at the sub-solar point.
Radio - Wide area blackout of HF (high frequency) radio communication for about an hour.
***
Space Weather Message Code: SUM10R
Serial Number: 627
Issue Time: 2014 Sep 10 1903 UTC
SUMMARY: 10cm Radio Burst
Begin Time: 2014 Sep 10 1723 UTC
Maximum Time: 2014 Sep 10 1732 UTC
End Time: 2014 Sep 10 1826 UTC
Duration: 57 minutes
Peak Flux: 1300 sfu
Latest Penticton Noon Flux: 159 sfu
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/NOAAscales
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.
***
Space Weather Message Code: ALTTP4
Serial Number: 477
Issue Time: 2014 Sep 10 1815 UTC
ALERT: Type IV Radio Emission
Begin Time: 2014 Sep 10 1728 UTC
Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.
***
Space Weather Message Code: ALTTP2
Serial Number: 960
Issue Time: 2014 Sep 10 1814 UTC
ALERT: Type II Radio Emission
Begin Time: 2014 Sep 10 1727 UTC
Estimated Velocity: 3750 km/s
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.
origin-www.swpc.noaa.gov/news/g2-moderate-geomagnetic-storm-watch
G2 (moderate) Geomagnetic Storm Watch
A Forecast Watch for NOAA Scale G2 (moderate) Geomagnetic Storm conditions has been issued for 12 September, as the result of the coronal mass ejection associated with the M4 flare observed early on September 9th. The arrival of the plasma cloud at Earth’s magnetosphere is forecast for early on the 12th. G1 (minor) conditions are forecast to persist into 13 September. Displayed here is an ENLIL model depiction of the plasma cloud with a component flanking towards Earth.
read more at the Big River Site